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Leukodystrophy

Leukodystrophy refers to progressive degeneration of the white matter of the brain due to imperfect growth or development of the myelin sheath, the fatty covering that acts as an insulator around nerve fiber. Myelin, which lends its color to the white matter of the brain, is a complex substance made up of at least ten different chemicals. The leukodystrophies are a group of disorders that are caused by genetic defects in how myelin produces or metabolizes these chemicals. Each of the leukodystrophies is the result of a defect in the gene that controls one (and only one) of the chemicals. more...

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Types

Specific leukodystrophies include (ICD-10 codes are provided where available):

  • (E71.3) adrenoleukodystrophy
  • (E75.2) metachromatic leukodystrophy
  • (E75.2) Krabbe disease
  • (E75.2) Pelizaeus-Merzbacher disease
  • Canavan disease
  • childhood ataxia with central hypomyelination (CACH or vanishing white matter disease)
  • Alexander disease
  • (G60.1) Refsum disease
  • cerebrotendineous xanthomatosis

Symptoms

The most common symptom of a leukodystrophy disease is a gradual decline in an infant or child who previously appeared well. Progressive loss may appear in body tone, movements, gait, speech, ability to eat, vision, hearing, and behavior. There is often a slowdown in mental and physical development. Symptoms vary according to the specific type of leukodystrophy, and may be difficult to recognize in the early stages of the disease.

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Bioimaging in neurodegeneration
From SciTech Book News, 9/1/05

Bioimaging in neurodegeneration. (CD-ROM included)

Ed. by Patricia A. Broderick et al.

Humana Press Inc.

2005

313 pages

$165.00

Hardcover

RC394

Venturing beyond conventional magnetic resonance imaging (MRI), international contributors to 23 chapters examine novel micro- and nano-based neuroimaging technologies to diagnose and treat neurodegenerative conditions. Broderick (neurology, New York U. School of Medicine) introduces new tools that work in real time, e.g., BRODERICK PROBE sensors (named after her?), and new variants of MRI and positron emission tomography (PET) studies. Some, such as intrinsic optical signal imaging (IOS), show promise for applications in guided neurosurgery. Diseases surveyed for clinicians and researchers include Parkinson's, Alzheimer's, forms of epilepsy, and disorders of white matter (leukodystrophy). The companion CD contains color versions of selected b&w illustrations in the book.

([c] 2005 Book News, Inc., Portland, OR)

COPYRIGHT 2005 Book News, Inc.
COPYRIGHT 2005 Gale Group

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